зеркало из https://github.com/mozilla/pjs.git
351 строка
11 KiB
C++
351 строка
11 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
|
*
|
|
* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is the gopher-directory to http-index code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Bradley Baetz.
|
|
* Portions created by the Initial Developer are Copyright (C) 2000
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Bradley Baetz <bbaetz@student.usyd.edu.au>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
/* This code is based on the ftp directory translation code */
|
|
|
|
#include "plstr.h"
|
|
#include "nsMemory.h"
|
|
#include "nsCRT.h"
|
|
#include "nsIServiceManager.h"
|
|
#include "nsIGenericFactory.h"
|
|
#include "nsString.h"
|
|
#include "nsReadableUtils.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsIURI.h"
|
|
#include "nsEscape.h"
|
|
#include "nsIStreamListener.h"
|
|
#include "nsIStreamConverter.h"
|
|
#include "nsStringStream.h"
|
|
#include "nsIRequestObserver.h"
|
|
#include "nsNetUtil.h"
|
|
#include "nsMimeTypes.h"
|
|
|
|
#include "nsGopherDirListingConv.h"
|
|
|
|
// nsISupports implementation
|
|
NS_IMPL_ISUPPORTS3(nsGopherDirListingConv,
|
|
nsIStreamConverter,
|
|
nsIStreamListener,
|
|
nsIRequestObserver)
|
|
|
|
// nsIStreamConverter implementation
|
|
|
|
#define CONV_BUF_SIZE (4*1024)
|
|
|
|
NS_IMETHODIMP
|
|
nsGopherDirListingConv::Convert(nsIInputStream *aFromStream,
|
|
const char *aFromType,
|
|
const char *aToType,
|
|
nsISupports *aCtxt, nsIInputStream **_retval) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
// Stream converter service calls this to initialize the actual
|
|
// stream converter (us).
|
|
NS_IMETHODIMP
|
|
nsGopherDirListingConv::AsyncConvertData(const char *aFromType,
|
|
const char *aToType,
|
|
nsIStreamListener *aListener,
|
|
nsISupports *aCtxt) {
|
|
NS_ASSERTION(aListener && aFromType && aToType,
|
|
"null pointer passed into gopher dir listing converter");
|
|
|
|
// hook up our final listener. this guy gets the various On*() calls
|
|
// we want to throw at him.
|
|
mFinalListener = aListener;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
// nsIStreamListener implementation
|
|
NS_IMETHODIMP
|
|
nsGopherDirListingConv::OnDataAvailable(nsIRequest *request,
|
|
nsISupports *ctxt,
|
|
nsIInputStream *inStr,
|
|
PRUint32 sourceOffset,
|
|
PRUint32 count) {
|
|
nsresult rv;
|
|
|
|
PRUint32 read, streamLen;
|
|
nsCAutoString indexFormat;
|
|
|
|
rv = inStr->Available(&streamLen);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
char *buffer = (char*)nsMemory::Alloc(streamLen + 1);
|
|
if (!buffer)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
rv = inStr->Read(buffer, streamLen, &read);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
// the dir listings are ascii text, null terminate this sucker.
|
|
buffer[streamLen] = '\0';
|
|
|
|
if (!mBuffer.IsEmpty()) {
|
|
// we have data left over from a previous OnDataAvailable() call.
|
|
// combine the buffers so we don't lose any data.
|
|
mBuffer.Append(buffer);
|
|
nsMemory::Free(buffer);
|
|
buffer = ToNewCString(mBuffer);
|
|
mBuffer.Truncate();
|
|
}
|
|
|
|
if (!mSentHeading) {
|
|
nsCOMPtr<nsIChannel> channel = do_QueryInterface(request);
|
|
NS_ENSURE_STATE(channel);
|
|
|
|
nsCOMPtr<nsIURI> uri;
|
|
channel->GetURI(getter_AddRefs(uri));
|
|
NS_ENSURE_STATE(uri);
|
|
|
|
// build up the 300: line
|
|
nsCAutoString spec;
|
|
rv = uri->GetAsciiSpec(spec);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
//printf("spec is %s\n",spec.get());
|
|
|
|
indexFormat.AppendLiteral("300: ");
|
|
indexFormat.Append(spec);
|
|
indexFormat.Append(char(nsCRT::LF));
|
|
// END 300:
|
|
|
|
// build up the column heading; 200:
|
|
indexFormat.AppendLiteral("200: description filename file-type\n");
|
|
// END 200:
|
|
|
|
mSentHeading = PR_TRUE;
|
|
}
|
|
char *line = DigestBufferLines(buffer, indexFormat);
|
|
// if there's any data left over, buffer it.
|
|
if (line && *line) {
|
|
mBuffer.Append(line);
|
|
}
|
|
|
|
nsMemory::Free(buffer);
|
|
|
|
// send the converted data out.
|
|
nsCOMPtr<nsIInputStream> inputData;
|
|
|
|
rv = NS_NewCStringInputStream(getter_AddRefs(inputData), indexFormat);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
rv = mFinalListener->OnDataAvailable(request, ctxt, inputData, 0,
|
|
indexFormat.Length());
|
|
return rv;
|
|
}
|
|
|
|
// nsIRequestObserver implementation
|
|
NS_IMETHODIMP
|
|
nsGopherDirListingConv::OnStartRequest(nsIRequest *request, nsISupports *ctxt) {
|
|
// we don't care about start. move along... but start masqeurading
|
|
// as the http-index channel now.
|
|
return mFinalListener->OnStartRequest(request, ctxt);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsGopherDirListingConv::OnStopRequest(nsIRequest *request, nsISupports *ctxt,
|
|
nsresult aStatus) {
|
|
return mFinalListener->OnStopRequest(request, ctxt, aStatus);
|
|
}
|
|
|
|
// nsGopherDirListingConv methods
|
|
nsGopherDirListingConv::nsGopherDirListingConv() {
|
|
mSentHeading = PR_FALSE;
|
|
}
|
|
|
|
char*
|
|
nsGopherDirListingConv::DigestBufferLines(char* aBuffer, nsCAutoString& aString) {
|
|
char *line = aBuffer;
|
|
char *eol;
|
|
PRBool cr = PR_FALSE;
|
|
|
|
// while we have new lines, parse 'em into application/http-index-format.
|
|
while (line && (eol = PL_strchr(line, nsCRT::LF)) ) {
|
|
// yank any carriage returns too.
|
|
if (eol > line && *(eol-1) == nsCRT::CR) {
|
|
eol--;
|
|
*eol = '\0';
|
|
cr = PR_TRUE;
|
|
} else {
|
|
*eol = '\0';
|
|
cr = PR_FALSE;
|
|
}
|
|
|
|
if (line[0]=='.' && line[1]=='\0') {
|
|
if (cr)
|
|
line = eol+2;
|
|
else
|
|
line = eol+1;
|
|
continue;
|
|
}
|
|
|
|
char type;
|
|
nsCAutoString desc, selector, host;
|
|
PRInt32 port = GOPHER_PORT;
|
|
|
|
type = line[0];
|
|
line++;
|
|
char* tabPos = PL_strchr(line,'\t');
|
|
|
|
/* Get the description */
|
|
if (tabPos) {
|
|
/* if the description is not empty */
|
|
if (tabPos != line) {
|
|
char* descStr = PL_strndup(line,tabPos-line);
|
|
if (!descStr)
|
|
return nsnull;
|
|
char* escName = nsEscape(descStr,url_Path);
|
|
if (!escName) {
|
|
PL_strfree(descStr);
|
|
return nsnull;
|
|
}
|
|
desc = escName;
|
|
NS_Free(escName);
|
|
PL_strfree(descStr);
|
|
} else {
|
|
desc = "%20";
|
|
}
|
|
line = tabPos+1;
|
|
tabPos = PL_strchr(line,'\t');
|
|
}
|
|
|
|
/* Get selector */
|
|
if (tabPos) {
|
|
char* sel = PL_strndup(line,tabPos-line);
|
|
if (!sel)
|
|
return nsnull;
|
|
char* escName = nsEscape(sel,url_Path);
|
|
if (!escName) {
|
|
PL_strfree(sel);
|
|
return nsnull;
|
|
}
|
|
selector = escName;
|
|
NS_Free(escName);
|
|
PL_strfree(sel);
|
|
line = tabPos+1;
|
|
tabPos = PL_strchr(line,'\t');
|
|
}
|
|
|
|
/* Host and Port - put together because there is
|
|
no tab after the port */
|
|
if (tabPos) {
|
|
host.Assign(line, tabPos - line);
|
|
line = tabPos+1;
|
|
tabPos = PL_strchr(line,'\t');
|
|
if (tabPos == NULL)
|
|
tabPos = PL_strchr(line,'\0');
|
|
|
|
/* Port */
|
|
nsCAutoString portStr(line, tabPos - line);
|
|
port = atol(portStr.get());
|
|
line = tabPos+1;
|
|
}
|
|
|
|
// Now create the url
|
|
nsCAutoString filename;
|
|
if (type != '8' && type != 'T') {
|
|
filename.AssignLiteral("gopher://");
|
|
filename.Append(host);
|
|
if (port != GOPHER_PORT) {
|
|
filename.Append(':');
|
|
filename.AppendInt(port);
|
|
}
|
|
filename.Append('/');
|
|
filename.Append(type);
|
|
filename.Append(selector);
|
|
} else {
|
|
// construct telnet/tn3270 url.
|
|
// Moz doesn't support these, so this is UNTESTED!!!!!
|
|
// (I do get the correct error message though)
|
|
if (type == '8')
|
|
// telnet
|
|
filename.AssignLiteral("telnet://");
|
|
else
|
|
// tn3270
|
|
filename.AssignLiteral("tn3270://");
|
|
if (!selector.IsEmpty()) {
|
|
filename.Append(selector);
|
|
filename.Append('@');
|
|
}
|
|
filename.Append(host);
|
|
if (port != 23) { // telnet port
|
|
filename.Append(':');
|
|
filename.AppendInt(port);
|
|
}
|
|
}
|
|
|
|
if (tabPos) {
|
|
/* Don't display error messages or informative messages
|
|
because they could be selected, and they'll be sorted
|
|
out of order.
|
|
If FTP displays .messages/READMEs ever, then I could use the
|
|
same method to display these
|
|
*/
|
|
if (type != '3' && type != 'i') {
|
|
aString.AppendLiteral("201: ");
|
|
aString.Append(desc);
|
|
aString.Append(' ');
|
|
aString.Append(filename);
|
|
aString.Append(' ');
|
|
if (type == '1')
|
|
aString.AppendLiteral("DIRECTORY");
|
|
else
|
|
aString.AppendLiteral("FILE");
|
|
aString.Append(char(nsCRT::LF));
|
|
} else if(type == 'i'){
|
|
aString.AppendLiteral("101: ");
|
|
aString.Append(desc);
|
|
aString.Append(char(nsCRT::LF));
|
|
}
|
|
} else {
|
|
NS_WARNING("Error parsing gopher directory response.\n");
|
|
}
|
|
|
|
if (cr)
|
|
line = eol+2;
|
|
else
|
|
line = eol+1;
|
|
}
|
|
return line;
|
|
}
|